Combined sleeper and chair for railways.



Patented Oct. 3, I899.

H. E. Room. COMBINED SLEEPER AND CHAIR FOB RAILWAYS.

(Application filed may 21, 398.)

(In Mbdel.)

awvewlioz' W5C (em UNITED STATES PATENT OFFICE.

HERBERT EDWARDVROOKE,OF RAIIEEGUNGE, INDIA.

CQMBINED SLEEPER AND CHAIR FOR RAILWA YS.

SPECIFICATION forming part of Letters Patent No. 634,032, dated October 3, 1899.

Application filed May 21,1898. Serial No. 681.876. on) more.)

To all whom it may concern..- Be it known that I, HERBERT EDWARD ROOKE, mining engineer, a British subject, residing at Raneegunge, in the Province of Bengal, India, have invented certain new and useful Improvements in a Combined Sleeper and Chair for Railways, of which the following is a specification. V This invention relates to an improved castiron combined sleeper and chair for use in the systems of permanent way in which the rail is suspended in the jaws of the chair.

In the cast-iron combined sleeper and chair at present in use the movable jaw of the chair is dropped vertically into place and rests between two projecting ribs on the upper surface of the base-plate of the sleeper and is secured in its place by a single cotter passed through the two side ribs, the movable jaw, and the gage-tie, which holds the two sleepers together laterally. The defect in this arrangement is that if the cotter (tapering key) works loose from vibration, which it is liable to do, or if it is maliciously removed the derailment of a train is certain to occur, as the gage-tie and movable jaw being set free the sleeper is thrust outward, the movable jaw slips back, and the rail drops down out of place. Further, an excessive percentage of breakages occur owing to insufficiency of stiffness in the base-plate. This improved sleeper is designed to remedy these defects (at) by stiffening the plate with extra ribs, (b) by the use of double cotters, (c) by fitting the loose jaw from the side of the sleepers, and (d) by using fish-plates and bolts for securing it in its place.

In the drawings hereunto annexed and which are to be read as part of this specification the same letters are used to indicate like parts in each figure.

Figure 1 is a central vertical transverse section of one form of mydevice. Fig. 2 is a section on line 2 2 of Figs. 1 and 4. Fig. 3 is side view from the left of Fig. 1, except that a rail is shown in position in the chair. Fig. 4 is a plan of Fig. Fig. 5 is a plan of a modification, and Fig. 6 is a central vertical transverse section of said modification.

In this improved combined sleeper and chair, Figs. 1, 2, 3, and 4., A is the base-plate, which is stilfened on the under side bya central longitudinal rib B and a slight beading c all around the edges and on the top by sloping diagonal ribs D and central projections E, integral with the base-plate, through which the gage-tie F passes, rib G being continuous on one side of the plate only, its central part G projecting outward to strengthen it at that point. The opposite side G which forms the sloping footings of diagonal ribs D, has a break in it at G to allow of the insertion of movable jaw J from the side, the sloping footing G being an integral part of J. The fixed jaw Hot the chair is cast on the plate A, and the movable jaw J is slid into place from the open side of the sleeper and is held in posi- 7 'tion by gage-tie F and cotters K and K, and

to prevent it tilting its sloping toe L is held down by a corresponding slope L in the casting in contact with it. The rail M is shown suspended in the jaws of the chair. In all cases the movable jaw is set on the inside between the rails, and on a straight run the wide cotter is placed outside the rail and the narrow cotter 0n the inside; but on a curve their positions are reversed, so as to allow a certain amount of looseness to gage.

In Figs. 5 and 6 a modification of the above is shown by the addition of a wrought-iron fish-plate N, bolted to sideribs D by short bolts P, which completely shuts in the movable jaw J. At the same time as fish-plate N considerably stifiens the base-plate A the under rib B may be dispensed with.

Other modifications that may be adopted are: (0.) Where traffic is light, rib B may be dispensed with without using the fish-plate N; (b) ribs G and G may be dispensed withand two (a pair) wrought fish-plates used,

and (c) the cotter-keys K and, K may be dispensed with and bolts and nuts substituted therefor.

Having now described my invention, what I claim as new, and for which I desire to secure Letters Patent, is-

1. In a combined sleeper and chair, the

combination of an oblong base-plate A, hav- IOO jaw J, cotters K and K which secure gagetieF and said movable jaw J in position, both jaws holding rail M suspended by its head substantially as set forth.

2. In a combined sleeper and chair, the

combination of an oblon base-plate A with beaded edges 0, diagonal ribs D on top, central projections E through which gage-tie F 7 passes, side ribs G and G and fixed jaw H all cast in one piecewith an opening on one side for'insertion of movablejaw J, cotters' K and K for securinggage-tie F and movable jaw in position for suspending rail Min the chair-jaws substantially as set forth.

In a combined sleeper and chair, the

I combination of an oblong base-plate A, diagnected with the base-plate, a detachable, jaw

J, the base-plate and 'mo'vable'jaw being so formed that the jaw can be inserted from the side and inside of the projection E parts E, H, J and E being perforated transversely,

gage-tie F passing there-through, said parts H, V

J, and 'F having alsoperforations at right angles to the perforations first mentioned, and fastening devices therein.

5. In a combined sleeperand chair the combination of a base-plate, a central jaw H and projetions'E said parts being integral with the baseplate, a detachable jaw J, the baseplate and movable jaw being so formed that the jaw canlbe inserted from the side, and inside'of the projection E, the fixed undercut edge L, and the movable jaw having an edge, L fitting the same, parts E,:H and J being perforated transversely, gage-tie F passing therethrongh, said parts H, J and F hav ing also perforations at right angles to the perforations first mentioned, and cotters' K, K therein. V

Signed at Calcutta, in the Province of Bengal, British India, this 5th day of April, 1898.

HERBERT EDWARD ROOKE.

Witnesses: c r

A. K. OANTWELL, E. N. UANTWELL. 

